Ultrasound therapy system with automatic dose control
First Claim
1. A method for automatically controlling by automatic control circuitry a therapeutic ultrasound transducer for ultrasonically treating tissue and comprising the steps of:
- (a) providing means for inputting tissue treatment parameters into automatic control circuitry operatively connected to a therapeutic ultrasound transducer;
(b) upon tissue treatment parameters being entered, automatically calculating by said control circuitry an ultrasound treatment dosage based on input tissue treatment parameters said treatment dosage including at least two dosage factors which are mathematically related to said dosage;
(c) upon no tissue treatment parameters being entered, automatically calculating by said control circuitry an ultrasound treatment dosage based on selected default tissue treatment parameters;
(d) automatically controlling said ultrasound transducer by said control circuitry to maintain the calculated ultrasound treatment dosage;
(e) manually varying a first of said dosage factors; and
(f) automatically varying a second of said dosage factors to compensate for variation of the first dosage factor to thereby maintain the previously calculated dosage.
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Accused Products
Abstract
An ultrasound therapy system with automatic dose control includes an ultrasound transducer, an ultrasound generator controllable in frequency and power output connected to the transducer, a system controller interfaced to the generator, input switches interfaced to the controller to enable the input of selected ultrasound treatment parameters, and a display interfaced to the controller. The controller is programmed to calculate an ultrasound treatment dosage in terms of frequency, ultrasound intensity, and treatment time from the entered treatment parameters. Once treatment is started, the controller tracks the accumulated dosage applied to the tissue. The clinician can vary the intensity or treatment time, and the controller will recalculate the other factor for the remaining portion of the unapplied treatment dosage.
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Citations
16 Claims
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1. A method for automatically controlling by automatic control circuitry a therapeutic ultrasound transducer for ultrasonically treating tissue and comprising the steps of:
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(a) providing means for inputting tissue treatment parameters into automatic control circuitry operatively connected to a therapeutic ultrasound transducer; (b) upon tissue treatment parameters being entered, automatically calculating by said control circuitry an ultrasound treatment dosage based on input tissue treatment parameters said treatment dosage including at least two dosage factors which are mathematically related to said dosage; (c) upon no tissue treatment parameters being entered, automatically calculating by said control circuitry an ultrasound treatment dosage based on selected default tissue treatment parameters; (d) automatically controlling said ultrasound transducer by said control circuitry to maintain the calculated ultrasound treatment dosage; (e) manually varying a first of said dosage factors; and (f) automatically varying a second of said dosage factors to compensate for variation of the first dosage factor to thereby maintain the previously calculated dosage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for automatically controlling by automatic control circuitry a therapeutic ultrasound transducer for ultrasonically treating tissue and comprising the steps of:
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(a) inputting a selection of a desired tissue treatment depth to automatic control circuitry operatively connected to a therapeutic ultrasound transducer; (b) inputting to said control circuitry a tissue temperature increase at the selected tissue depth; (c) automatically calculating by said control circuitry an ultrasound treatment dosage in terms of dosage factors of an ultrasound intensity applied to said tissue over a treatment time based on the input tissue temperature increase; (d) energizing said transducer at a frequency corresponding to the input tissue treatment depth; (e) automatically maintaining an output of ultrasonic energy from said transducer at the calculated treatment dosage; (f) prior to expiration of said treatment time, manually varying a first of said dosage factors; and (g) automatically varying a second of said dosage factors to compensate for variation of the first of said dosage factors to thereby maintain the originally calculated treatment dosage. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification